Fire-Arm is a hired gun for Dr. Inferno. He is similar to Saw Fist, but has a cannon instead of a buzz saw on his right arm and his face has robot parts on the opposite side. Fire-Arm and Claw-Dette captured Agent Fuse when he was on a solo mission, but he was saved when his fellow Agents Chase and Trace ruined Dr. Inferno's madcap plan of taking over the world from his volcano base. Fire-Arm has an orange, black, and silver suit like most of Dr. Inferno's henchmen.
- His name is a pun on firearm.
- He is the one of 6 minifigures in Agents to have this hair.